Daily Sunspot Evaluation
Observation Sheet Wednesday, 17 October 1979
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 14
- Number of spots (f)
- 82
- Relative number (R)
- 222
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19791017.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 18 | 27 | 39E | 180 | 40E | 271 | |
| 2 | A – 6 | 7 | 29E | 190 | 30E | 272 | |
| 3 | A – 1 | -9 | 69E | 150 | 70E | 279 | |
| 4 | A – 1 | 1 | 18E | 201 | 19E | 280 | |
| 5 | J – 1 | -13 | 61E | 158 | 62E | 276 | |
| 6 | A – 1 | -14 | 36E | 183 | 37E | 281 | |
| 7 | C – 6 | -6 | 16E | 203 | 17E | 266 | |
| 8 | A – 1 | -26 | 48E | 171 | 49E | 277 | |
| 9 | A – 2 | -18 | 04E | 212 | 05E | 278 | |
| 10 | B – 3 | -16 | 10W | 229 | 09W | 267 | |
| 11 | J – 1 | 9 | 82W | 301 | 81W | 255 | |
| 12 | J – 1 | 12 | 16W | 235 | 15W | 261 | |
| 13 | E – 19 | 26 | 32W | 251 | 31W | 257 | |
| 14 | F – 21 | 32 | 02W | 221 | 01W | 262 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.